I left my coach at Prevost Nashville in early November for maintenance work. I picked up the coach this Saturday. Needless to say I was surprised to find the coach water systems FROZEN and ALL batteries dead. They did have it plugged into shore power but failed to switch on the main breaker! (In the same bay as the glendinning in/out switch and not hidden) No one from Prevost works on Saturday's so there was no one there for assistance. I got lucky when the driver of an entertainer coach showed up (parked next to me) and he had TWO 20' jumper cables. After 1/2 hour we got it started. I let it warm up and turned on the Aquahot. In about 1 1/2 hours I was able to get water to trickel out of the sinks and found no leaks (to date) except for the toilet. The plastic valves broke. I ran the gen all the way home, and never shut down the engine. It's now stored in my heated warehouse now and I am keeping a close eye on leakage from the holding tanks. Can I assume that all batteries are shot or will they come back. What about future problems with any/all water systems/tanks. What would you do............?? BTW, George from Nashville did apologize.